在清细胞细胞癌中,SEMA3G作为一种与Wnt途径相关的新预后生物标志物起作用
Huanrui Wang1, Weiyu Zhang1, Zehua Ding1
1Department of Urology, Peking University People's Hospital, Beijing 100045, China.
Cellular signalling
|August 26, 2023
概括
低SEMA3G表达与清细胞脏细胞癌 (ccRCC) 的生存率较差有关. 这项研究揭示了SEMA3G.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 细胞癌 (RCC),特别是清细胞RCC (ccRCC),由于瘤异质性和有限的治疗选择,提出了重大临床挑战.
- 识别预后生物标志物和理解分子机制对于推进ccRCC研究至关重要.
- 塞马福林3G (SEMA3G) 在ccRCC中的作用在很大程度上仍未被探索.
研究的目的:
- 研究SEMA3G在清细胞细胞癌中的表达,预后价值和功能作用.
- 探索潜在的分子机制,包括Wnt信号通路,这是SEMA3G对ccRCC进展的影响的基础.
主要方法:
- 在癌症基因组图谱 (TCGA) 数据集中对SEMA3GmRNA表达的分析.
- 使用免疫组织化学和西欧涂料验证SEMA3G蛋白质表达.
- 功能测试包括Transwell和伤口愈合测试,以评估细胞移动性,入侵和增殖.
- 基因组丰富分析 (GSEA) 和西方抹黑,以探索相关的生物通路,特别是Wnt信号通路.
主要成果:
- 与正常脏组织相比,ccRCC组织中的mRNA和蛋白质水平显著下调SEMA3G表达.
- 低SEMA3G表达与晚期临床阶段和更高的病理级别相关,预测整体和疾病特异性生存率较差.
- 在体外,SEMA3G的过度表达抑制了癌细胞的运动性,侵入性和扩散性.
- 确定Wnt信号通路是SEMA3G对ccRCC瘤发生和进展的抑制作用中的关键通路.
结论:
- 在清细胞细胞癌中,SEMA3G作为潜在的瘤抑制剂起作用.
- 在ccRCC患者中,SEMA3G的下调与积极的临床病理特征和不良预后有关.
- 作为ccRCC的潜在预后生物标志物和治疗点,SEMA3G需要进一步调查.
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